Alkaline phosphatase test cost in St. Louis, MO
In St. Louis, MO-IL, 17 hospitals list a cash price for alkaline phosphatase (ALP) blood test: from $13.65 to $116.90, with a median of $63.00. The lowest listed price is at Mercy Hospital Jefferson and 1 other hospital — $49.35 less than the median here. Across Missouri, the median is $51.15 at 64 hospitals.
Cash prices at 17 facilities across 15 cities for code 84075, as an outpatient — the setting a self-pay patient normally buys. Collected Sep 27, 2026; the hospital files themselves were last updated between Feb 6, 2026 and Apr 24, 2026.
Where each hospital's price falls
Each dot is one hospital's cash price on a scale from the lowest to the highest in St. Louis, MO-IL.
Hospitals, cheapest first
| Hospital | Cash price | List price | Insurers pay | Off list | File date |
|---|---|---|---|---|---|
| Mercy Hospital Jefferson lowest Festus, MO · (636) 933-1000 Alkaline Phosphatase | $13.65 | $21.00 | $1.37–$21.00 | 35% | — source file |
| Mercy Hospital St Louis lowest Saint Louis, MO · (314) 251-6000 Alkaline Phosphatase | $13.65 | $21.00 | $1.37–$21.00 | 35% | — source file |
| Gateway Regional Medical Center Granite City, IL · (618) 798-3000 PHOSPHATASE,ALKALINE | $30.65 | $51.08 | $51.08 | 40% | — source file |
| Touchette Regional Hospital Cahokia Heights, IL · (618) 332-3060 Phosphatase, alkaline | $36.58 | $59.00 | $2.24–$56.00 | 38% | — source file |
| Ranken Jordan Pediatric Bridge Hospital Maryland Heights, MO · (314) 872-6400 Alkaline Phosphatase | $38.16 | $47.69 | — | 20% | Apr 24, 2026 source file |
| Shriners Childrens - St Louis Saint Louis, MO · (314) 432-3600 ASSAY ALKALINE PHOSPHATASE | $40.60 | $40.60 | $2.81–$8.89 | — | — source file |
| Mercy Hospital Washington Washington, MO · (636) 239-8000 Alkaline Phosphatase | $42.90 | $66.00 | $4.29–$59.40 | 35% | — source file |
| St Josephs Hospital Hospital Sisters Third Order of St Francis Breese, IL · (618) 526-4511 ASSAY ALKALINE PHOSPHATASE | $44.64 | $62.00 | $3.80–$62.00 | 28% | — source file |
| Mercy Hospital Jefferson Festus, MO · (636) 933-1000 Alkaline Phos Bone Specific | $53.30 | $82.00 | $5.33–$82.00 | 35% | — source file |
| Mercy Hospital St Louis Saint Louis, MO · (314) 251-6000 Alkaline Phos Bone Specific | $53.30 | $82.00 | $5.33–$82.00 | 35% | — source file |
| Jersey Community Hospital Jerseyville, IL · (618) 498-6402 Alkaline Phosphatase | $63.00 | $63.00 | $32.95–$53.55 | — | — source file |
| Mercy Hospital South Saint Louis, MO · (314) 525-1000 Alkaline Phosphatase | $64.35 | $99.00 | $6.44–$99.00 | 35% | — source file |
| Mercy Hospital South Saint Louis, MO · (314) 525-1000 Alkaline Phos Bone Specific | $64.35 | $99.00 | $6.44–$99.00 | 35% | — source file |
| Community Hospital of Staunton Staunton, IL · (618) 635-2200 ALK PHOSPHATASE-TOTAL | $66.90 | $133.80 | $38.68–$121.76 | 50% | Feb 9, 2026 source file |
| St Josephs Hospital of the Hospital Sisters of the Third Order of St Francis Highland, IL · (618) 651-2600 ASSAY ALKALINE PHOSPHATASE | $68.40 | $95.00 | $8.84–$95.00 | 28% | — source file |
| Hshs Holy Family Hospital Greenville, IL · (618) 664-1230 ASSAY ALKALINE PHOSPHATASE | $68.40 | $95.00 | $3.99–$95.00 | 28% | — source file |
| Anderson Hospital Maryville, IL · (618) 288-5711 ALK PHOSPHATASE-TOTAL | $69.30 | $138.60 | $4.84–$124.74 | 50% | Feb 6, 2026 source file |
| Mercy Hospital Lincoln Troy, MO · (636) 528-8551 Alkaline Phosphatase | $70.20 | $108.00 | $7.02–$108.00 | 35% | — source file |
| St Elizabeths Hospital of the Hospital Sisters of the Third Order of St Francis O'Fallon, IL · (618) 234-2120 HC ALKALINE PHOSPHATASE | $83.52 | $116.00 | $3.80–$116.00 | 28% | — source file |
| Carlinville Area Hospital Carlinville, IL · (217) 854-3141 ALK PHOSP | $116.90 | $167.00 | $60.12–$238.57 | 30% | — source file |
| Carlinville Area Hospital Carlinville, IL · (217) 854-3141 ASSOC ALK PHOS TOTAL | $116.90 | $167.00 | $60.12–$238.57 | 30% | — source file |
| Gateway Regional Medical Center Granite City, IL · (618) 798-3000 Q6432 PHOSPHATAS ALK | $252.43 | $420.72 | $420.72 | 40% | — source file |
Outpatient: lowest $13.65, median $63.00, highest $116.90 — a 8.6× difference within the same market.
As an inpatient, the same code is billed by 12 facilities here, median $67.65. Inpatient and outpatient prices are not comparable and are kept on separate pages: the inpatient charge covers admission, not the same purchase.
Cash or insurance?
At 14 of 16 hospitals that publish insurer rates for this code here, the cash price is below the highest rate a health plan has negotiated, and at 1 it is below every plan's rate. If you have insurance but have not met your deductible, you usually pay your plan's negotiated rate, which falls somewhere in the "Insurers pay" column. Paying cash can cost less, but a cash payment usually does not count toward your deductible. Ask the hospital for both numbers before you book.
What it is
An alkaline phosphatase test measures an enzyme from the liver, bile ducts and bones. High levels suggest a blocked bile duct, liver disease or bone disease.
What the price covers
The price usually covers running the test. The blood draw (36415) is often billed as a separate line.